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Электронный каталог: Zhu, L. - *a-Decay Propertyies of the Neutron-Deficient Nuclei 219, 220Np
Zhu, L. - *a-Decay Propertyies of the Neutron-Deficient Nuclei 219, 220Np
Статья
Автор: Zhu, L.
Physical Review C: *a-Decay Propertyies of the Neutron-Deficient Nuclei 219, 220Np
б.г.
ISBN отсутствует
Автор: Zhu, L.
Physical Review C: *a-Decay Propertyies of the Neutron-Deficient Nuclei 219, 220Np
б.г.
ISBN отсутствует
На полку
Статья
Zhu, L.
*a-Decay Propertyies of the Neutron-Deficient Nuclei 219, 220Np / L.Zhu, V.K.Utyonkov, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov, D.I.Solovyev, N.D.Kovrizhnykh, M.V.Shumeiko, [a.o.]. – Text : electronic // Physical Review C. – 2026. – Vol. 114, No. 1. – P. 014301. – URL: https://doi.org/10.1103/jh7w-x7n8.
The neutron-deficient neptunium isotopes &sup(219,220) Np were reinvestigated via the fusion-evaporation reaction &sup(169) Tm ( &sup(54) Cr , 3−4𝑛) &sup(219,220) Np at the gas-filled recoil separator SHANS2 (Spectrometer for Heavy Atoms and Nuclear Structure-2). The 𝛼-decay properties for these Np isotopes, which are the heaviest 𝑁=126 and 127 isotones known to date, were measured with more statistics and improved precision. The ground-state 𝛼 decay of &sup(220) Np &sub(127) with the 𝛼-particle energy of 𝐸&sub(𝛼)=10078(16) keV and the half-life of 𝑇&sub(1/2)=23&sup(+9) &sub(−5) µs was updated. In the case of &sup(219) Np &sub(126) , the improved decay data with 𝐸𝛼 = 9015(16) keV and 𝑇&sub(1/2) = 0.14&sup(+0.07) &sub(−0.03) ms were determined. In the framework of the Rasmussen method, the systematics of 𝛼-decay reduced width match well with the previously known tendency with 𝑁=126. However, the new data may imply a difference in the influence of the 𝑁=126 shell effects beyond 𝑍=92. In addition, the cross sections of the reaction were measured at several beam energies at the level of picobarns, exhibiting the promising capability of the SHANS2 separator to explore the boundary of the nuclear chart in the most neutron-deficient actinide region.
ОИЯИ = ОИЯИ (JINR)2026
Спец.(статьи,препринты) = С 341.1д - Альфа-распад, протонный распад и другие виды распада
Zhu, L.
*a-Decay Propertyies of the Neutron-Deficient Nuclei 219, 220Np / L.Zhu, V.K.Utyonkov, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov, D.I.Solovyev, N.D.Kovrizhnykh, M.V.Shumeiko, [a.o.]. – Text : electronic // Physical Review C. – 2026. – Vol. 114, No. 1. – P. 014301. – URL: https://doi.org/10.1103/jh7w-x7n8.
The neutron-deficient neptunium isotopes &sup(219,220) Np were reinvestigated via the fusion-evaporation reaction &sup(169) Tm ( &sup(54) Cr , 3−4𝑛) &sup(219,220) Np at the gas-filled recoil separator SHANS2 (Spectrometer for Heavy Atoms and Nuclear Structure-2). The 𝛼-decay properties for these Np isotopes, which are the heaviest 𝑁=126 and 127 isotones known to date, were measured with more statistics and improved precision. The ground-state 𝛼 decay of &sup(220) Np &sub(127) with the 𝛼-particle energy of 𝐸&sub(𝛼)=10078(16) keV and the half-life of 𝑇&sub(1/2)=23&sup(+9) &sub(−5) µs was updated. In the case of &sup(219) Np &sub(126) , the improved decay data with 𝐸𝛼 = 9015(16) keV and 𝑇&sub(1/2) = 0.14&sup(+0.07) &sub(−0.03) ms were determined. In the framework of the Rasmussen method, the systematics of 𝛼-decay reduced width match well with the previously known tendency with 𝑁=126. However, the new data may imply a difference in the influence of the 𝑁=126 shell effects beyond 𝑍=92. In addition, the cross sections of the reaction were measured at several beam energies at the level of picobarns, exhibiting the promising capability of the SHANS2 separator to explore the boundary of the nuclear chart in the most neutron-deficient actinide region.
ОИЯИ = ОИЯИ (JINR)2026
Спец.(статьи,препринты) = С 341.1д - Альфа-распад, протонный распад и другие виды распада
